Gregory Hall
Senior Chemist Emeritus
Chemistry Division
Building 555
Brookhaven National Laboratory
P.O. Box 5000
Upton, NY 11973-5000
Phone: (631) 344-4376
FAX: (631) 344-5815
e-mail
Gas-Phase Molecular Dynamics
Research Interests
Chemical Physics: Molecular dynamics, spectroscopy,
photochemistry and kinetics. Applications of high resolution spectroscopy to
molecular dynamics; Doppler spectroscopy for the measurement of product
correlations in bimolecular and unimolecular reactions. Statistical and
dynamical models of vector correlations; experimental tests of unimolecular
rate theory. Multiple surface reactions; coherent effects in multiple path
reactions; measurement and interpretation of photofragment orientation.
Collision-induced electronic transitions. Double-resonance spectroscopy for
collision studies of energy and polarization transfer.
Education
A.B. in Chemistry, Cornell University, 1974
M.Sc. in Physical Chemistry, University of Toronto, 1976
Ph.D. in Physical Chemistry, University of Toronto, 1980
Professional Employment
Cornell University 1980-1987
- Manager, Facility for Laser Spectroscopy; Research Associate
- Senior Research Asssociate
Brookhaven National Laboratory 1987-present
- Assistant chemist, Associate Chemist, Chemist, Senior Chemist,
- Deputy Chair
Fellowships and Visiting Appointments
Max-Planck Institut für Strömungsforschung, Göttingen, summer 1986
Physical Chemistry Institute, University of Zürich, 9/1996-8/1997
Fellow of the American Physical Society, 2009
School of Chemistry, University of New South Wales, Sydney, 2/2015-4/2015
School of Chemical and Physical Sciences, Flinders University, Adelaide, 5/2015-7/2015
Representative Publications
- Collinear two-color saturation spectroscopy in CN A–X
(1–0) and (2–0) bands
D. Forthomme, C. P. McRaven, T.J. Sears and G.E. Hall
J. Molec. Spectrosc. 296, 36-42 (2014)
http://dx.doi.org/10.1016/j.jms.2013.12.006
- Temperature-dependent, nitrogen-perturbed line shape
measurements in the ν1+ν3 band of acetylene using a diode laser referenced to a frequency comb
M. J. Cich, D. Forthomme, C. P. McRaven, G. V. Lopez, G. E. Hall, T. J. Sears and A. W. Mantz
J. Phys. Chem. A 117, 13908-13918 (2013)
http://dx.doi.org/10.1021/jp408960e
- Argon-induced pressure broadening, shifting and narrowing in the CN A 2Π – X 2Σ+ (1-0) band.
D. Forthomme, C. P. McRaven, T. J. Sears and G. E. Hall
J. Phys. Chem. A 117, 11837-11846 (2013)
http://dx.doi.org/10.1021/jp4030359
- Sub-Doppler spectroscopy of mixed state levels in CH2
C.-H. Chang, G. E. Hall and T. J. Sears
J. Chem. Phys. 133, 144310 (2010)
- Sub-Doppler Stark Spectroscopy in the A-X (1,0) Band of CN
M. L. Hause, G. E. Hall, and T. J. Sears
J. Phys. Chem. A, 113, 13342–13346 (2009).
- Coherent and incoherent orientation and alignment of ICN photoproducts
M. L. Costen and G. E. Hall
Phys. Chem. Chem. Phys. 9, 272-287 (2007)
- State-resolved thermalization of singlet and mixed singlet-triplet states of CH2
A. V. Komissarov, A. Lin, T. J. Sears and G. E. Hall
J Chem. Phys. 125, 084308 (2006)
- Transient Laser Frequency Modulation Spectroscopy
G. E. Hall and S. W. North
Annu. Rev. Phys. Chem. 51, 243-74 (2000)
- Vector Signatures of Adiabatic and Diabatic Dynamics in the Photodissociation of ICN
M. L. Costen, S. W. North and G. E. Hall
J. Chem. Phys. 111, 6735-49 (1999)
- Applications of Doppler spectroscopy in photofragmentation
R. J. Gordon and G. E. Hall
Adv. Chem. Phys. 96, 1-50 (1996)
Complete publication list